Cell Signalling and Transduction In the signal transduction mechanism known as protein phosphorylation receptor kinases play a key role in triggering the signal cascade phosphorylated proteins act with enzymes to trigger the signal cascade All of these the signaling molecule binds to a surface receptor receptor kinases play a key role in triggering the signal cascade phosphorylated proteins act with enzymes to trigger the signal cascade All of these the signaling molecule binds to a surface receptor ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction A cell is known to respond to a particular signaling molecule. Which of the following must be true of this cell? It is in the heart muscle It contains the receptor for the signaling molecule It is also the site of production for the signaling molecule It is incapable of signal transduction It is in the heart muscle It contains the receptor for the signaling molecule It is also the site of production for the signaling molecule It is incapable of signal transduction ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The hormone or ligand can be considered as first messenger none of these second messenger both (a) and (b) first messenger none of these second messenger both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Simple nerve reflexes use signaling molecules called proteases G proteins nitric oxides neurotransmitters proteases G proteins nitric oxides neurotransmitters ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following comes under the category of cell surface receptor? All of these G protein linked receptors Ion-channel linked receptors Enzyme linked receptors All of these G protein linked receptors Ion-channel linked receptors Enzyme linked receptors ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The signaling molecules called steroid hormones are hydrophilic and so cannot penetrate the plasma membrane bind to cell surface receptors to trigger chemical cascades never enter the blood of humans are made in one location of the body but have their effects some distance away are hydrophilic and so cannot penetrate the plasma membrane bind to cell surface receptors to trigger chemical cascades never enter the blood of humans are made in one location of the body but have their effects some distance away ANSWER DOWNLOAD EXAMIANS APP
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